117247420872 has 384 divisors, whose sum is σ = 354751488000. Its totient is φ = 34844359680.

The previous prime is 117247420841. The next prime is 117247420931. The reversal of 117247420872 is 278024742711.

117247420872 is a `hidden beast` number, since 1 + 172 + 474 + 2 + 0 + 8 + 7 + 2 = 666.

It is a super-2 number, since 2×117247420872² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 208254463 + ... + 208255025.

It is an arithmetic number, because the mean of its divisors is an integer number (923832000).

Almost surely, 2^117247420872 is an apocalyptic number.

117247420872 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 117247420872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177375744000).

117247420872 is an abundant number, since it is smaller than the sum of its proper divisors (237504067128).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117247420872 is a wasteful number, since it uses less digits than its factorization.

117247420872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 761 (or 754 counting only the distinct ones).

The product of its (nonzero) digits is 351232, while the sum is 45.

The spelling of 117247420872 in words is "one hundred seventeen billion, two hundred forty-seven million, four hundred twenty thousand, eight hundred seventy-two".